Humidifier with structure to prevent backflow of liquid through the humidifier inlet

USRE44453E1 · kind E1 · reissue

Assignee

• ResMed Corp. · AU

Inventors

• Alexander Virr · Sydney, AU
• Ian Malcolm Smith · Hornsby, AU
• Perry David Lithgow · Batemans Bay, AU
• Richard Llewelyn Jones · Hornsby, AU
• Andrew Cheung · Mississauga, CA

Key dates

• Filing date: May 4, 2011
• Grant date: Aug 27, 2013
• Expiry date: May 4, 2031

Classification

• Technology area (CPC —): General

Abstract

A humidifier includes a base configured to retain a body of liquid therein, a top cover, and a seal disposed between the top cover and the base. At least a portion of the base is constructed of a heat conducting material. The top cover defines both an inlet and an outlet communicated with an interior of the base. The inlet is configured to receive pressurized breathable gas and the outlet is configured to deliver the pressurized breathable gas with added humidity.